1998 GMC Sierra 2500 fuel economy
The EPA lists 5 versions of the 1998 GMC Sierra 2500. Combined fuel economy ranges from 14 to 15 MPG; the most efficient version is rated 14 city / 18 highway.
At a glance
- Combined
- 14 to 15 MPG depending on version
- City and highway
- 14 and 18 most efficient version
- Yearly fuel cost
- $4,450 EPA estimate, most efficient version
Source: U.S. EPA fueleconomy.gov
Every version the EPA tested
| Version | Engine | Drive | City | Highway | Combined | Yearly fuel cost |
|---|---|---|---|---|---|---|
| Sierra 2500 2WD Automatic 4-spd | 8-cyl 5.0L | Rear-Wheel Drive | 14 | 18 | 15 MPG | $4,450 |
| Sierra 2500 2WD Manual 5-spd | 8-cyl 5.0L | Rear-Wheel Drive | 13 | 17 | 15 MPG | $4,450 |
| Sierra 2500 2WD Automatic 4-spd | 8-cyl 6.5L | Rear-Wheel Drive | 13 | 17 | 15 MPG | $6,400 |
| Sierra 2500 2WD Automatic 4-spd | 8-cyl 5.7L | Rear-Wheel Drive | 13 | 17 | 14 MPG | $4,800 |
| Sierra 2500 2WD Manual 5-spd | 8-cyl 5.7L | Rear-Wheel Drive | 12 | 18 | 14 MPG | $4,800 |
At EPA assumptions, the most efficient version costs about $4,450 per year in fuel, versus $4,800 for the least efficient.